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WM8978GEFL/V Datasheet(PDF) 25 Page - Wolfson Microelectronics plc

Part # WM8978GEFL/V
Description  STEREO CODEC WITH SPEAKER DRIVER
PDF  78 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8978GEFL/V Datasheet(HTML) 25 Page - Wolfson Microelectronics plc

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WM8978
w
PP Rev 1.7 January 2005
25
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
8
HPFEN
1
High Pass Filter Enable
0=disabled
1=enabled
7
HPFAPP
0
Select audio mode or application mode
0=Audio mode (1
st order, fc = ~3.7Hz)
1=Application mode (2
nd order, fc =
HPFCUT)
R14
ADC Control
6:4
HPFCUT
000
Application mode cut-off frequency
See Table 13 for details.
Table 12 ADC Enable Control
FS (KHZ)
SR=101/100
SR=011/010
SR=001/000
HPFCUT
8
11.025
12
16
22.05
24
32
44.1
48
000
82
113
122
82
113
122
82
113
122
001
102
141
153
102
141
153
102
141
153
010
131
180
156
131
180
156
131
180
156
011
163
225
245
163
225
245
163
225
245
100
204
281
306
204
281
306
204
281
306
101
261
360
392
261
360
392
261
360
392
110
327
450
490
327
450
490
327
450
490
111
408
563
612
408
563
612
408
563
612
Table 13 High Pass Filter Cut-off Frequencies (HPFAPP=1)
Note that the High Pass filter values (when HPFAPP=1) work on the basis that the SR register bits
are set correctly for the actual sample rate as shown in Table 13.



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